intrinsic safety

The YOKOGAWA ASD533-S is a digital output module with a built-in intrinsic safety barrier for the CENTUM VP / CS 3000 Field Control Unit (FIO). 

The Pepperl+Fuchs KFD2-ST-Ex2 is a 2-channel isolated switch amplifier designed to safely transfer binary signals from hazardous areas to a safe control system. It provides intrinsic safety isolation for NAMUR sensors or dry contacts located in Zone 0/1/2 hazardous locations.

The ABB AO890 (3BSC690072R1) is an 8-channel intrinsically safe analog output module from the S800 I/O system, designed for ABB System 800xA DCS and AC 800M controllers. The module features integrated intrinsic safety (Ex ia) protection components on each channel, allowing direct connection to process equipment in hazardous areas (Zone 0/1/2) without requiring external safety barriers.

The ABB AO895 (3BSC690087R1) is an 8-channel analog output module from the S800 I/O system, designed for the System 800xA DCS and AC 800M controller platform. Each channel provides a 4...20 mA output with integrated Intrinsic Safety (IS) protection components and a HART interface, allowing direct connection to field devices in hazardous areas without requiring external isolators or safety barriers.